Beadlock and Protection Ring: the dual-use technology changing the rules of off-road
In the world of high-performance off-roading, every wheel component is the result of precise technical choices. Among the most significant innovations of recent years, two distinct but complementary systems stand out: the beadlock ring and the Protection Ring, the latter an original creation by Evocorse. Understanding how they work and why they were developed means understanding how a wheel is born that will give you the ability to tackle any terrain.
What are beadlock-ready wheels
Before diving into the details of the two technologies, one thing must be made clear: neither the beadlock nor the Protection Ring can be fitted to just any wheel. These systems require specially designed wheels, equipped with a series of threaded holes on the outer edge of the rim. Through these holes, the rings are secured with bolts, creating a direct mechanical connection between tyre and wheel. It is precisely this architecture that gives rise to the need for differentiated technical solutions for road and off-road use.
The Beadlock Ring: Maximum traction with no risk of bead separation
The principle behind the beadlock is simple in concept but revolutionary in practice: mechanically locking the tyre to the wheel, physically preventing it from coming off even in extreme conditions.
How does it work?
The beadlock ring is positioned on the outside of the wheel and secured via bolts through the holes on the outer edge, so that the tyre is clamped between the outer flange and the ring. This mechanical lock allows tyre pressure to be reduced to values very close to zero without the risk of the tyre coming off its seat (a phenomenon known as bead separation).
Why it is essential in technical off-roading
Reducing tyre pressure in off-road driving is not a whim — it is a well-established technique that produces tangible effects on vehicle behaviour. With reduced pressures, the tyre deforms by flattening out and increasing its contact patch, with direct benefits for:
- traction on sand, mud and rocks, where a larger contact surface makes all the difference;
- obstacle absorption capability, thanks to the greater deformability of the rubber;
- vehicle control in the most critical situations, where superior grip can be decisive.
The beadlock is the reference solution in off-road racing, rally raid and competitive technical off-roading.
The limitation: the beadlock ring is not road-approved
Despite its high performance, the beadlock system is not approved for use on public roads. Designed for demanding and specialist applications, it does not meet the regulatory requirements for everyday use on public roads. Evocorse’s true innovation, however, goes one step further back: the fundamental invention is the dual-use system, which allows the tyre to be mounted in two distinct configurations on the same wheel — on the outside, with the beadlock ring active, or on the inside in the channel, exactly like a traditional wheel. On a conventional beadlock wheel this is not possible: without the ring, the tyre simply cannot be fitted. It is precisely this dual-use architecture that creates the threaded holes in the wheel and therefore the need to protect them when the beadlock is not installed.
The Protection Ring: Evocorse’s original solution for dual-use
The Protection Ring is an original invention by Evocorse, developed as a natural complement to the dual-use system: since Evocorse is among the very few manufacturers in the world to offer wheels with this architecture. The Protection Ring addresses this specific need, covering the threaded holes during road use while always keeping intact the possibility of reinstalling the beadlock at any time.
How does it work?
The Protection Ring is a ring made up of six modular segments, designed to occupy the wheel’s holes and cover the outer edge of the rim. Unlike the beadlock, its thickness is considerably reduced and its function is not to lock the tyre, but solely to protect the wheel structure. When the Protection Ring is fitted, both tyre beads remain inside the wheel channel, exactly as with a traditional wheel. The seal is provided by air pressure, with no modification to the standard tyre behaviour.
Atlas BL: the only wheel on the market with dual-use technology
The integration between a beadlock-ready wheel and the Protection Ring finds its fullest expression in the Atlas BL, the off-road wheel developed by Evocorse that is currently the only solution on the market to offer this dual-use technology. The Atlas BL was designed for those who do not want to choose between extreme performance and everyday versatility. Thanks to native compatibility with both systems, the same wheel can be configured with the beadlock ring for the most demanding off-road outings and with the Protection Ring for ordinary road use, protecting the structure and always keeping the wheel ready for the next configuration change. It is a wheel that responds to real-world use, designed for those who live off-roading without limitations.
Conclusion
The beadlock and the Protection Ring are not competing technologies: they are two sides of the same construction philosophy. One guarantees limit performance in the most extreme conditions; the other protects the wheel and preserves its integrity during every other use. Evocorse has developed both solutions and integrated them into a coherent system, bringing to market with the Atlas BL a wheel capable of adapting to any scenario, without compromise.
Discover the Atlas BL on the Evocorse website
https://evocorse.com/en/cat/cerchi-in-lega/atlas-bl/?modello=30&lock=modello